Chao Sun created SPARK-37376:
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Summary: Introduce a new DataSource V2 interface HasPartitionKey
Key: SPARK-37376
URL: https://issues.apache.org/jira/browse/SPARK-37376
Project: Spark
Issue Type: Sub-task
Components: SQL
Affects Versions: 3.3.0
Reporter: Chao Sun
One of the pre-requisite for the feature is to allow V2 input partitions to
report their partition values to Spark, which can use them to compare if both
sides of join are co-partitioned, and also optionally group input partitions
together.
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